Administrator of the estate



S. RIGLER.

Automatic Register.

lPatented Dec. t0, 1867.

, e @einen tatre atwtffirr.

JOEL T. BUCKLEY, Ol11 OTTAWA, ILLINOIS, ADMINISTRATOR OF THE ESTATE OF STEPHEN RIGLER, DECEASED.

Letters .Patent No. 72,084, dated December I0, 1867.

IMPROVEMENT IN AUTOMATIC REGISTERS- TO ALL WHOM IT MAY COOERN:

Be it known that'SrnrnuN. ltiGLEn, deceased, late of Ottawa, in the county of La. Salle, and State of Illinois, did invent in his lifetime an Improved Automatic Register; and whereas JOEL T. BUCKLEY, of said county and State, has been duly appointed administrator of the estate of the said STEPHEN RIGLER, now, therefore, I, Jost. `T. BUCKLEY, do hereby declare that thc following is a full, clear, and exact description of said invention, reference being had to the accompanying drawings, making a part of this speciiicatiou, in which` Figure 1 is an outside -or front view of the register.

Figure 2 is a vertical central section through the register, indicated by rcd'line o: in fig. 1.

Figure 3 `is a section taken in the plane indicated by red line y y in iig. 2.

Similar letters of reference indicate corresponding parts in the three figures.

This invention relates to a novel improvement on registers, which are employed in furnace-shafts or fines, and other` places, for regulating the passage of heated air into apartments; and also for Ventilating apartments.

The nature of this invention consistsin automatically regulating the movements'of register-slides so as to increase or diminish the size of tIe'register-openings, through which air circulates, by means of the expansion and contraction of mercury enclosed within a tube, as will be hcrein'after described. Also, in the employment of an index-hand, in conjunction with a register-slide, which is automatically opened and closed bythe expansion and contraction of mercury, in such manner that said hand will, at all times, indicate the` degree of temperature upon the face of the register, as will be hereinafter described.

To enable others skilled in the art to understand the iuvention,I will describe its construction and operation., In the accompanying drawings, A represent the frame or box of the register, which is suitably adapted for receiving in its face an open-work circular slide, B, which is designed to receive a slight motion about its axis, for

` slide= B, is made fast to one end of a hollow shaft, b, which has its bearings in plate D, and also in a stirrup, e, which is secured to the baekof this plate, as shown in tig. 2. Between the stirrup c'and perforated plate D, a spunwheel, d, is keyed upon said hollow shaft b, which engages with the teeth of a segment-rack, e, on the inner end ot a. vibrating lever, F, shown in igs. 2 and 3. The lever F is pivotcd to a stud, f, projecting from the plate D, and upon the shortest arm of this lever a segment-rack, el, is formed, the'tceth of which engage with a rack `which is formed on a eross-head, g, shown in figs. 2 and 3. The cross-head g is. secured fast to a piston-rod, gli having a piston'head, g, ou one end, which works within the end of a pipe, G, and is acted upon by the expansion and contraction of mercury, which is confined within this pipe. The piston-rod g1 passes through the axis of a hollow adjusting-screw, h, which is tapped through bearings upon the back plate of frame A, as lshown at t i, fig. 3. Between the end of screw hand the cross-head y, a spripg, j, is applied, which will force the cross-head up against the cap 7c on pipe G, and hold it there with a given pressure, which is regulated by4 means of the screw la. The mercury-pipe G is carried around the frame A, within this frame, and terminated at a vpoint which is `opposite the eross-head g. This end of the pipe G is closed and hermetically scaled by means of a cap, Z, packing: m, a'nd paekingscrew, n, or by any other suitable means, which will prevent the escape of mercury from the pipe at this point. When pipe G is filled with mercury, and the piston g2 adjusted up tightly against it, at a temperate `regulating the size of the openings a a ct, through a plate, D, through which air is allowed to escape. This circular heat, the register is ready for use. ,As the heat expands the mercury in pipe G, the piston-rod will be forced out-i ward, which will act, through the medium of eros-head g and segmentlever F, upon the hollow shaft b, and'thfne move` the circular slidcB so as to allow ot' a greater or less escape of air through the register into the room. As

the temperature of the room. diminishes, the expansion of mercury will also diminish, so as to open the 4slide B and allow more heat in the apartment. In this way, and by these means, the opening and closing of the circular slide will be automatic, and regulated by the temperature of the apartment in which the register is applied. Through the centre ot' the hollow shaft b a shaft, p, passes, carrying on one end an index-hand, S,which points ata marginal index upon a circular elevation, P, on the face of the ,fregisteig and on the other endv a pinion-wheel, P', which engages with the teeth of a segment-rack on the lever F, as shown in g. 2. 'lhe expansion and contraction of mercury in pipe G, operating upon the lever F, will also operate the index-hand, and thereby register the degree of heat upon the face of the register-plate.

Having described the-invention ot' .STEPHEN-Breites, what I claim as new, and desire to secure by Letters Patent, is-

1.` Operating a. register-slide so as' to regulate the temperature of apartments, by means of a'column. of

mercury within a tube, which is arranged within the register itself', and acts upon said slide through the means .substantially as described,

2. The combination of an index-hand, S, with a register, arranged and operated by acolumn of mercurj" within a tube, which is arranged within the register itself, substantially as described.

3. AThe combination witlra. circular-turning vregister-slide, B, of mercu1ypipe G, piston-rod g1, cross-head gy toothed lever F, spur-wlieel'd, and shaft L, arranged, constructed, l:1nd operating substantially as described.

- JOEL T, BUCKLEY, Administrator of Stephen'RgZer, deceased.

Witnesses:

LIFL H. POWERS, H. L. MEAD. 

